LO M67F-U2AB-24-1-20-R18-Z Equivalent & Substitute Parts

Part Overview

The LO M67F-U2AB-24-1-20-R18-Z is an orange surface-mount LED indication component manufactured by ams-OSRAM USA INC. as part of the Mini TOPLED® series. This discrete 2-SMD J-Lead device operates at 2.15V forward voltage with a dominant wavelength of 606nm and provides 1180mcd luminous intensity at 20mA test current. The component is designated as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for applications currently utilizing this LED.

Substiute Parts

LO M67F-U2AB-24-1-20-R18-Z

ams-OSRAM USA INC.In Stock: 5008LO M67F-U2AB-24-1-20-R18-Z Datasheet

Current PartRFQ

KO DELPS1.22-UGVI-24-H3Q4-20-S

ams-OSRAM USA INC.In Stock: 18858KO DELPS1.22-UGVI-24-H3Q4-20-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LO M67F-U2AB-24-1-20-R18-Z is determined by alignment of the following critical parameters:

Color and Wavelength Compatibility: The substitute part must emit orange light at the same dominant wavelength (606nm) and peak wavelength (610nm) to maintain optical consistency in indication applications.

Electrical Characteristics: Forward voltage (Vf) and test current must be compatible with existing circuit designs. The substitute part operates at 2.3V Vf compared to the main part's 2.15V, representing a 0.15V differential that must be evaluated within circuit tolerance margins.

Luminous Intensity: The substitute part provides 785mcd at 20mA test current, compared to 1180mcd for the main part. This represents a reduction in brightness output.

Optical Properties: Both parts maintain 120° viewing angle and clear colorless lens transparency, ensuring consistent optical performance in indication circuits.

Mounting and Compliance: Both parts are surface-mount devices with identical RoHS3 compliance, MSL rating, and REACH status, enabling direct substitution from a regulatory and handling perspective.

Package Considerations: The main part uses 2-SMD J-Lead packaging (2.00mm L x 1.40mm W, 1.40mm height), while the substitute uses 2-SMD Flat Lead packaging (1.40mm L x 0.80mm W, 0.70mm height). Physical dimensions differ significantly, requiring PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

Regulatory and Compliance Alignment: Both the main part and substitute part maintain identical RoHS3 compliance, MSL rating of 2 (1 Year), and REACH Unaffected status. This ensures regulatory continuity for applications subject to environmental and hazardous substance restrictions.

Production Status Consideration: The LO M67F-U2AB-24-1-20-R18-Z is designated Last Time Buy, indicating end-of-life status. The KO DELPS1.22-UGVI-24-H3Q4-20-S maintains Active product status with higher inventory availability (18794 Pcs versus 4923 Pcs), supporting long-term supply chain stability.

Electrical Parameter Evaluation: The forward voltage differential of 0.15V (2.15V to 2.3V) requires circuit-level assessment. Applications with fixed current-limiting resistor designs will experience minimal impact. Designs with voltage-regulated supplies may require resistor value adjustment to maintain 20mA test current.

Luminous Intensity Trade-off: The substitute part delivers 785mcd compared to 1180mcd, representing a 34% reduction in brightness. Applications where indication visibility is non-critical or where ambient lighting conditions are controlled can accommodate this reduction. Applications requiring maximum brightness output should evaluate alternative parts with higher mcd ratings.

Physical Footprint Constraints: The substitute part occupies a smaller PCB footprint (1.40mm L x 0.80mm W versus 2.00mm L x 1.40mm W) and reduced height (0.70mm versus 1.40mm). PCB layout redesign is required for direct substitution. The change from J-Lead to Flat Lead configuration necessitates pad pattern modification.

Supply Format Consideration: The main part is supplied in Cut Tape (CT) format, while the substitute is supplied in Tape & Reel (TR) format. This affects procurement quantity minimums and handling procedures but does not impact component functionality.

Frequently Asked Questions (FAQ)

Q: Can the KO DELPS1.22-UGVI-24-H3Q4-20-S directly replace the LO M67F-U2AB-24-1-20-R18-Z without circuit modification?

A: Direct replacement without modification is not recommended. The substitute part differs in forward voltage (2.3V versus 2.15V), luminous intensity (785mcd versus 1180mcd), and physical package dimensions. Circuit-level evaluation is required to confirm compatibility with existing current-limiting resistor values and PCB layout constraints.

Q: What is the impact of the 0.15V forward voltage difference on circuit operation?

A: In constant-current designs using current-limiting resistors, the voltage differential results in approximately 7mV additional voltage drop across the resistor. For typical 20mA operation, this represents minimal impact on circuit performance. In voltage-regulated designs, resistor value adjustment may be necessary to maintain target current levels.

Q: Why does the substitute part have lower luminous intensity (785mcd versus 1180mcd)?

A: The KO DELPS1.22-UGVI-24-H3Q4-20-S is designed for compact form factor applications with reduced physical dimensions. The smaller lens size (1.23mm x 0.60mm versus 1.50mm x 1.00mm) and lower mcd rating reflect this design optimization. Applications requiring the original brightness level should not use this substitute.

Q: Are PCB layout changes required for substitution?

A: Yes. The substitute part uses a different package style (2-SMD Flat Lead versus 2-SMD J-Lead) with significantly different physical dimensions (1.40mm L x 0.80mm W x 0.70mm H versus 2.00mm L x 1.40mm W x 1.40mm H). PCB pad patterns and component placement must be redesigned to accommodate the new package geometry.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, carry identical MSL ratings (2, 1 Year), and maintain REACH Unaffected status. Regulatory continuity is maintained for applications subject to environmental and hazardous substance restrictions.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging supplies components in individual strips cut to specified lengths, suitable for smaller quantity orders. Tape & Reel packaging supplies components on continuous reels, typically used for higher-volume automated assembly. Both formats contain identical components; the difference is in supply and handling format only.

Q: Is the substitute part suitable for applications requiring maximum brightness?

A: No. The substitute part provides 34% lower luminous intensity (785mcd versus 1180mcd). Applications where indication visibility is critical or where ambient lighting conditions are bright should evaluate alternative parts with higher mcd ratings rather than using this substitute.

Q: Can the substitute part be used in existing designs without PCB redesign?

A: No. The different package style and physical dimensions require PCB layout modification. Attempting to use the substitute part in a PCB designed for the original part will result in assembly failure or poor electrical connections.